Paper-bag machine



(No Model.) 5 SheetsSheet 1.

W. A. LORENZ 8; W. H. HONISS.

PAPER BAG MACHINE.

No. 337,965. Patented Mar. 16. 1886. W 1{ 13 Witrzqrses D 7 [7211612 ton! paw; wfzam J6, 1

(No Model.) 5 Sheefs-Sheet 2. W. A. LORENZ & W. H. HONISS.

PAPER BAG MACHINE.

(No Model.) 7 5 SheetsSheet 3.

W. A. LORENZ & W. H. HONISS.

PAPER BAG MACHINE.

110.337.9635. Patented Mar. 16, 1886.

N V ihmew linvenfvm' (No Model.) 5 Sheets-Sheet 4.

W. A. LORENZ 81,- W. H. HONISS. PAPER BAG MACHINE.

No. 337,965. Patented Mar. 16, 1886 Wi i nee-sed- Wm. ZZZ

N. PETERS, mmoLlnw m w. Wn lvingklm u c (No Model.) 5 Sheets-Sheet 5.

' W. A. LORENZ 82 W. H. HONISS.

PAPER BAG MACHINE.

N. PETERS. hnmdjlhogmphun Washmgln I l ELLE Witnesses.

6Muu UNITED STATES PATENT OFFICE.

\VILLIAM LORENZ AND \VILLIAM H. HONISS, OF HARTFORD, CONNECTI. GUT, ASSIGNOES T FELIX WV. LEINBAO-H AND CLARENCE A. \VOLLE, OF

BETHLEHEM, PENNSYLVANIA.

PAPER-BAG MACHINE.

SPECIFICATION forming part of Letters Patent. No. 337,965, dated March 16, 1886.

Application filed February .24, 1885. Serial No.156,866. (No model.)

To all whom it may concern.-

Be it known that we, WILLIAM A. LORENZ and WILLIAM H. HONISS, both of Hartford, Connecticut, have invented certain new and useful Improvementsin Paper-Bag Machines,- of which the following description and claims constitute the specification, and which are illustrated by the accompanying five sheets of drawings.

IO This machine manufactures continuous tucked paper tubing into paper-bag blanks,

which have one end folded down into the diamond shape shown in Figure 5 of the drawings,

and which may be manufactured into paper I5 bags by means of machinery shown in our application of May 15, 1884, for Letters Patent of the United States. The diamondfolding mechanism of this machine differs materially from any other known to us.

Fig. 1 of the drawings is a plan view of a section of tucked papertubing of suitable length for a bag-blank, and Fig. 2 is an end view of the same. Fig. 3 is a plan view of the tube of Figs. 1 and 2, and of parts of the diamond-folding mechanism of this machine in position to operate upon that tube. Fig. 4 is a plan View of what is shown in Fig. 3 after the diamond-folding mechanism has done its worki Fig. 5 is a plan view of the folded blank of Fig. 4, being withdrawn from the diamond-folding mechanism. Fig. 6 is a side view of our new paper-bag machine. Fig. 7

is a plan view of the same. Fig. 8 is a sectional view of the machine, looking to the left 5 from the line a b of Fig. 7. Fig. 9 is a side View of parts of the diamond-folding mechanism whenpartly turned over in doing its work. Fig. 10 is a side view of the same when fully turned over and in the position relatively to 0 the blank shown in Fig. 5. Fig. 11 is afragmentary plan view of parts of the mechanism shown in complete plan view in Fig. 7. Fig.

12 is an enlarged detached view of parts of the mechanism shown in Fig. 8. Fig. 13 is a 5 view of the left-hand end of what is shown in plan view in Fig. 11 and in elevation in Fig. 12. The shaft 1 is driven by the pulley 2 in the direction indicated by the arrows adjacent to the belt in Fig. 6, and it runs in the uprights drawing-roll and cutting-roll.

4 and 5 and carries the intermediate gear, 6. That gear meshes with the gear 7 on the shaft 9, and the gear 7 meshes with the gear 8 on the shaft 10. The shafts 9 and 10 carry the drawing-rolls 11 and 12, which rolls draw the tucked paper tube into the machine from an adjacent machine adapted to manufacturethc same, and the extremity of the tube-former of which is indicatedin Figs. 6 and 7 by the numeral 13. The tucked paper tube 14 has the tucks 15 and 16, the lower folds, 17 and 18, the upper folds, 19 and 20, and the seam 21. The cutting-rolls 24 and '25 are keyed to the shafts 26 and 27, respectively, and recei ve motion from the gear 6, which meshes with the gear 28 on the shaft 26,while the gear 28 meshes with the gear 29 on the shaft 27. The upper drawingroll, 12, and the upper cultingroll, 25, are subject to the downward pressure of the springs 30 and 31, respectively, which springs bear downward upon the sliding boxes 32 and 7c 33, respectively, and are adjustable by the thumb-screws 22 and 23, respectively. Similar springs, boxes, and thumb-screws are also used on the other side of the machine to press downward upon the other ends of the upper The knife 34 is fixed in the periphery of the cutting-roll 25, and lengthwise thereof, while the rubber pad 35 is fixed correspondingly in the periphery of the cutting-roll 24.

The drawing-rolls have annular recesses on their peripheries, and the cutting-rolls have corresponding recesses extending part way around their peripheries, as shown in Fig. 7, the object of which recesses is to give room 8 for the passage of the six turns in the tucked paper tubing without flattening them down, and thus depriving them of their elasticity.

A reciprocating carriage, 38, slides on ways 39 and 40, supported by brackets 41 and 42. 90 The carriage is driven by the cranks 43 and 44, keyed to the shaft 9, which cranks work the connectingrods 45 and 46 through the crank-pins 47 and 48, respectively, and which connecting-rods work the carriage through 5 the carriage-pins 49 and 50, respectively. The resser-plate 51 is placed upon the rear part of the carriage 38, and is operated by the cam 52, which cam is keyed to the crank-pin 48-, and through the cam L roller 53 works the slide 54 and the connecting-rod 55. That rod is pivoted -to the arm 56, which arm is keyed to the shaft 57, and which shaftcarries on its inner end the arm 58. That arm has a pivot projecting at right angles therewith from its inner side near its end, and 'thatpivot works in a longitudinal slot in thearni 59. ter and a corresponding arm, 60, are both keyed to the shaft 61,which oscillates in bearings in the carriage 38-. Theextremities of the arms 59 and 60 are fastened to the forward corners, respectively, ot'the presser-plate 51.

The bevel-pointed side grippers, 67 and 68, are pivoted to the carriage 38 on pins 69 and.70, respectively, so as to vibrate crosswise of the carriage. 'lhose grippers are caused to vi brate by the rollers 71 and 72, respectively, running in cam-grooves on the peripheries of the cylindrical cams '73 and 74, respectively, which cams are keyed to the shaft 75. Adog, 76, is also keyed to the shaft 75, and operates to oscillate the same whenever by the forward motion of the carriage 38 the upper end of the dog is brought into contact with and caught by the spring-hook 77, which spring-hook is attached at its other end to the bracket 78. The pressenbolts 80 and81are pressed against the inner sides of the grippers 67 and 68, respectively, by the springs 82 and 83, respectively, in such a way as to hold the grippers down upon the top of the carriage whenever the adjacent angular projections of the grippers,-

i 89 is also keyed to the shaft 86, and it opertact therewith.

ates to open the gripper by colliding with the abutment 90 whenever by the forward movement of the carriage it is brought in con- The upper end, 91, of the dog 89 operates to close the gripper 85 down upon the carriage 38 whenever at the first part of the forward stroke of the carriage that upper end' is caught by the spring-hook 92, which hook is supported by't-he bracket 93. The fingers 96 and 96 are pivoted at 97 and 98, respectively, to a swinging head, 99, which head is keyed to one end of thecross-arm 100. That cross-arm is keyed to the outer end of the swinging arm 101,, and at right'angles to the latter arm, which in turn is keyed t0 the shaft 102, and which shaft oscillates 'in'bearings in upward projections of the carriage 38. A coiled spring, 103, connects the power ends of-the fingers 96 and 96 with a tension just sufficient to hold them closely together and the working ends apart, except when the latter are forced together by the withdrawal of the completed paper-bag blank from the carcornersof the upper folds of the .tuckedpa per tubing. The cam 108 on the crank-pin The latoscillates upon the pivot-115, and meshes with riage. The extremities of the working ends of the fingers 96 and 96 are formed with right angle corners 104 and 104, respectively, which corners, when the working ends of the fingers V are most widely separated, as in Figs. 3 and 4, are the same distance apart as are the inner 7'5 47, drives-the roller 109 on the slide 110, which slide is connected by the rod 111 to the sectorgear 112'at the pivot 113. That sector-gear the pinion 104, which pinion is keyed to the shaft 102.

The mode of operatic-his as follows: The tucked paper tubing is continuously drawn into this machine by the drawing-rolls 11 and 12, and is projected by the rolls 24 and 25 un- 85 ,der the uplifted presser-plate 51, and thence still farther forward upon the carriage 38, till Q the fingers 96 and 96 enter the forward ends of z the upper folds thereof, and the gripper 85 enters the forward end of the paper tubing at 9:: its longitudinal center and clasps it down upon the carriage38, which at that moment 8 has advanced through a portion of its forward stroke. Thereupon the knife 34 severs'the" bag-length 14, which is in advance'ofia at j f. the same time that the pre'sser-platehl presses I that length firmly down upon the carriage 38," and at the same time that the side grippers, f p 1* 67 and 68, enter the respective adjacent'tucks of the bag-length, and press their lower folth 1m down upon the carriage at the places indicated in Fig. 7. Then the arm 101 oscillates from the position shown inFig. 6 to that'showniu Fig. 9, and thence, without stopping, to tbat shown -in Fig. 101 That movement carries m5 with it the cross arm 100, the swinging head-99, and the fingers 96 and-96,'and those fingers carry with them the upper ply of the forward end of the tucked-tuhe'bag-length, and thus they turn it over upon-itself against the forward edge of the presser-plate 51,while they also define the diagonal creases upon I which the rear end of the diamond is folded down. Thediagonal creases upomwhichittm forward end of the diamond .is folded dow are defined by the-lines of strain betweenrthb gripper 85 and the grippers 67" and 68, spectivelyfwhile the sidecreases of the dim mond are defined by therlines of strain *be= tweenthe grippers 67 and 68,.respectiveiy, and thecorners 104 and 104', respectively, of; the fingers-96 and '96. While the abovede V I scribed folding of thediamond isbeing done, the'carriagetravels'to the forward limit of its i stroke,-and at that pointthe gripper.851il n5; removed from the bag-blank,andis"throwl. into the position shown in Fig. 10 by means of the abutment 90 colliding with the lower arm, 89, of that gripper, while the grippers 67 and 68 are removed sideiwiseand a'wayfromxthe .130 bag-blank by means ofthe abutment 7.9coh liding with the lower end of the dog 76,5and thus forcing the shaft 7 Send the cams 73 74 to oscillate, and thus to force towardeach luimmm' I it other the lower ends of the grippers, and while the presser-plate 51 is raised from the bagblank by the action of the cam 52 through the roller 58, the slide 54, the rod 55, the arm 56, .the shaft 57, the arm 58, and the arms 5.) and 60. Thus released from the grippers and the presser-plate, the bag-blank may be Withdrawn from the machine by any proper mechanism, which may also transfer itto other machinery for making the subsequent folds of the bottom of the bag. As the bag-blank is withdrawn, the diagonal folds of the rear end of the diamond force the working ends of the fingers 96 and 96 together against the resistance ofthe spring 103; but when the fingers are released from the diamond that spring returns the fingers to their relative working positions. As the carriage makes its return-stroke, the fingers 96 and 96 are swung back from the position shown in Fig. to that shown in Fig.6 by means of the cam 108 operating the roller 109, the slide 110, the rod 111,the sectorgear 112, the pinion 114, the shaft 102, the arm 101, the cross-arm 100, and the swinging head 99, which devices also caused the opposite swinging motion, heretofore described as operating to fold the diamond.

\Ve do not herein claim the combination of the carriage 88, the gripper (37, the cam 73,

the shaft '75, the dog 76, the hook-spring 77,

and the aljmtment '71), because that combination is substantially covered by claim 2 of our application No. 156,865 for Letters Patent of the United States of America, executed on the same day and filed on the same day with this specification.

\Ve claim as our invention 1. The combination of the lingers 96 and 96' with the spring 103, all constructed and operating together substantially as described.

2. The combination of the reciprocating carriage 38, the presser-plate 51, the side grip pers, 67 and 6S, and the front gripper, 85, all operating together substantially as described.

8. The combination of the reciprocating carriage 38, the presser-plate 51, the gripper 85, and the fingers 96 and 96, substantially as described.

4:. The combination of the reciprocating carriage 88, the fingers 96 and 96, the gripper 85, and the grippers 67 and 68, all operating together to open out the end of the tucked paper tube, substantially as described.

5. The combination of the reciprocating carriage 38, the presser-plate 51, the gripper 85, the grippers (i7 and 68, and the fingers 96 and 96, all operating together to fold the forward end of the blank of Figs. 1 and2 into the diamond shape of Fig. 5, all substantially as described.

\Vl LLIAM A. LORENZ. \VILLTAM H. HUN lSS.

\Vitnesses:

ALBERT Il-I. \VALKER, FRANK H. Pinnro'n'r. 

